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Filing Detail
Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0001104659-21-100548
Filing Date
2021-08-05
Accepted
2021-08-05 10:52:38
Documents
58
Period of Report
2021-06-30

Document Format Files

Seq Description Document Type Size
1 FORM 10-Q ccoi-20210630x10q.htm   iXBRL 10-Q 1629592
2 EXHIBIT-31.1 ccoi-20210630xex31d1.htm EX-31 14745
3 EXHIBIT-31.2 ccoi-20210630xex31d2.htm EX-31 14318
4 EXHIBIT-32.1 ccoi-20210630xex32d1.htm EX-32 6771
5 EXHIBIT-32.2 ccoi-20210630xex32d2.htm EX-32 6865
  Complete submission text file 0001104659-21-100548.txt   8129110

Data Files

Seq Description Document Type Size
6 XBRL TAXONOMY EXTENSION SCHEMA ccoi-20210630.xsd EX-101.SCH 35814
7 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE ccoi-20210630_cal.xml EX-101.CAL 51789
8 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE ccoi-20210630_def.xml EX-101.DEF 189813
9 XBRL TAXONOMY EXTENSION LABEL LINKBASE ccoi-20210630_lab.xml EX-101.LAB 361551
10 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE ccoi-20210630_pre.xml EX-101.PRE 283834
11 EXTRACTED XBRL INSTANCE DOCUMENT ccoi-20210630x10q_htm.xml XML 2128861
Mailing Address 2450 N STREET, NW WASHINGTON DC 20037
Business Address 2450 N STREET, NW WASHINGTON DC 20037 2022954200
COGENT COMMUNICATIONS HOLDINGS, INC. (Filer) CIK: 0001158324 (see all company filings)

IRS No.: 522337274 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 000-51829 | Film No.: 211146932
SIC: 4899 Communications Services, NEC